Datasheet

CY8CMBR3002, CY8CMBR3102
CY8CMBR3106S, CY8CMBR3108
CY8CMBR3110, CY8CMBR3116 Datasheet
Document Number: 001-85330 Rev. *G Page 23 of 37
System Specifications
The specifications in the following table are valid at T
A
= 25 °C and V
DD
= 5 V, unless otherwise specified.
Table 17. System Specifications
Parameter Description Conditions/Details Min Typ Max Units
C
P
Supported parasitic capacitance range of
sensors
0.2-pF sensitivity, SNR 5:1 5 – 45 pF
0.1-pF sensitivity, SNR 5:1 12 – 35 pF
0.1-pF sensitivity, SNR 4:1 5 – 45 pF
C
MOD
Value for C
MOD
external capacitor
5-V rating, X7R or NP0 Cap.
C
P
≤ 45 pF
–2.2–nF
I
AVG_NT
Average current per button with no finger
touch
V
DD
= 5 V, 3.3 V, 2.5 V, 1.8 V,
C
P
= 10 pF, 2 buttons,
Refresh interval = 120 ms, EMC
disabled, 0.4-pF sensitivity
––22
μA
I
AVG_WT
Average current with finger touch
V
DD
= 5 V, 3.3 V, 2.5 V, 1.8 V,
C
P
= 10 pF, 8 buttons,
Refresh interval =120 ms, EMC
disabled, 0.4-pF sensitivity
––600
μA
I
AVG_WF
Average current with EMC
V
DD
= 5 V, 3.3 V, 2.5 V, 1.8 V,
C
P
= 10 pF, 8 buttons,
Refresh interval =120 ms, EMC
enabled, 0.4-pF sensitivity
––300
μA
I
AVG_NF
Average current without EMC
V
DD
= 5 V, 3.3 V, 2.5 V, 1.8 V,
C
P
= 10 pF, 8 buttons,
Refresh interval = 120 ms, EMC
disabled
––100
μA
I
DS
Deep Sleep current with I
2
C on
V
DD
≤ 3.3 V, T
A
= 25 °C, I
2
C Enabled – 2.5 –
μA
T
BOOT_SYS
Boot-up time (time from power-up to first
sensor scan) with system diagnostics
enabled and EMC disabled
16 buttons, C
P
≤ 18 pF
––900ms
T
BOOT_WF
Boot-up time (time from power-up to first
sensor scan) with no system diagnostics
and EMC enabled
10 buttons, C
P
≤ 18 pF
––850ms
T
BOOT
Boot-up time (time from power-up to first
sensor scan) with no system diagnostics
and EMC disabled
16 buttons, C
P
≤ 18 pF
––400ms
T
BOOT_SYS_WF
Boot-up time (time from power-up to first
sensor scan) with both system
diagnostics and EMC enabled.
10 buttons, C
P
≤ 18 pF
– – 1350 ms
T
I2CBOOT
Boot up time (time from power to I
2
C
ready)
––15ms
T
I2C_LATENCY_
MAX
Time between I
2
C command and
execution (for all commands except the
"Save"
[13]
command)
––50ms
Note
13. Save command takes 220 ms to execute.